docs: add documentation for setComputed (#171)

Author: Austio

docs/en/README.md

@@ -39,6 +39,7 @@
     * [isEmpty](api/wrapper/isEmpty.md)
     * [isVueInstance](api/wrapper/isVueInstance.md)
     * [name](api/wrapper/name.md)
+    * [setComputed](api/wrapper/setComputed.md)
     * [setData](api/wrapper/setData.md)
     * [setMethods](api/wrapper/setMethods.md)
     * [setProps](api/wrapper/setProps.md)
@@ -55,6 +56,7 @@
     * [is](api/wrapper-array/is.md)
     * [isEmpty](api/wrapper-array/isEmpty.md)
     * [isVueInstance](api/wrapper-array/isVueInstance.md)
+    * [setComputed](api/wrapper-array/setComputed.md)
     * [setData](api/wrapper-array/setData.md)
     * [setMethods](api/wrapper-array/setMethods.md)
     * [setProps](api/wrapper-array/setProps.md)

docs/en/SUMMARY.md

@@ -37,6 +37,7 @@
     * [isEmpty](api/wrapper/isEmpty.md)
     * [isVueInstance](api/wrapper/isVueInstance.md)
     * [name](api/wrapper/name.md)
+    * [setComputed](api/wrapper/setComputed.md)
     * [setData](api/wrapper/setData.md)
     * [setMethods](api/wrapper/setMethods.md)
     * [setProps](api/wrapper/setProps.md)
@@ -54,6 +55,7 @@
     * [is](api/wrapper-array/is.md)
     * [isEmpty](api/wrapper-array/isEmpty.md)
     * [isVueInstance](api/wrapper-array/isVueInstance.md)
+    * [setComputed](api/wrapper-array/setComputed.md)
     * [setData](api/wrapper-array/setData.md)
     * [setMethods](api/wrapper-array/setMethods.md)
     * [setProps](api/wrapper-array/setProps.md)

docs/en/api/wrapper-array/setComputed.md

@@ -0,0 +1,26 @@
+
+# setComputed(computedObjects)
+
+Sets `Wrapper` `vm` computed and forces update on each `Wrapper` in `WrapperArray`.
+
+**Note every `Wrapper` must contain a Vue instance.**
+**Note every Vue instance must already have the computed properties passed to setComputed.**
+
+- **Arguments:**
+  - `{Object} computed properties`
+
+- **Example:**
+
+```js
+import { mount } from 'vue-test-utils'
+import Foo from './Foo.vue'
+import Bar from './Bar.vue'
+
+const wrapper = mount(Foo)
+const barArray = wrapper.findAll(Bar)
+
+barArray.setComputed({ 
+  computed1: 'new-computed1', 
+  computed2: 'new-computed2'
+})
+```

docs/en/api/wrapper/setComputed.md

@@ -0,0 +1,43 @@
+# setComputed(computedProperties)
+
+Sets `Wrapper` `vm` computed property and forces update.
+
+**Note the Wrapper must contain a Vue instance.**
+**Note every Vue instance must already have the computed properties passed to setComputed.**
+
+
+- **Arguments:**
+  - `{Object} computed properties`
+
+- **Example:**
+
+```js
+import { mount } from 'vue-test-utils'
+import { expect } from 'chai'
+
+const wrapper = mount({
+  template: '<div>{{ computed1 }} {{ computed2 }}</div>',
+  data() {
+    return {
+      initial: 'initial',
+    };
+  },
+  computed: {
+    computed1() { 
+      return this.initial 
+    },
+    computed2() { 
+      return this.initial 
+    },
+  }
+})
+
+expect(wrapper.html()).toBe('<div>initial initial</div>')
+
+wrapper.setComputed({ 
+  computed1: 'new-computed1',
+  computed2: 'new-computed2'
+})
+
+expect(wrapper.html()).toBe('<div>new-computed1 new-computed2</div>')
+```